iS Clinical Super Serum Advance+ 30ml

iS Clinical Super Serum Advance+ is the brand’s flagship antioxidant serum — vitamin C with Copper Tripeptide Growth Factor, targeting firmness, tone, scarring, and overall skin quality.

Why It’s the One People Repurchase

Vitamin C is the most evidence-supported topical antioxidant available, and this formula is stabilized properly, which is where most drugstore vitamin C fails. If you buy one active serum, this is the one that does the most work.

Best For

• Loss of firmness and early laxity
• Uneven tone, dullness, and sun damage
• The appearance of scarring and stretch marks
• Protecting results between laser treatments

Size Note

This is the 30ml bottle — better value per millilitre than the 15ml if you already know you like it.

Apply in the morning to clean skin, then moisturizer and SPF. Vitamin C and daily sunscreen work together; using one without the other wastes the other.